Safety gas cock



'CHARLES' L7. ERMENTBAUT, or NEW YORK; ni; ;Y vA'ss'rc-z'ivo'r; Oscara-1mm* `rro SIGMUND so'iiunnw .Appncafiqn fiiea December a, 1928.` sriai Na; 153,898.: 'w

My invention relates to safety' gas c'ocks, andmore particularly relates to gas cocks controlling the supply of i gas to' gas stoves, etc. A l w The general object of myinventionis 'to provide a safety gas cook having a novel auxiliary valve which is maintained open so long as the hose .leading to the gas' stove is connected to the cock, but which valve will automatically close upon the disconnection 'of the hose from any cause. i

Reference isto be had to the accompanyng drawings forming apart ofthis specification, it being understood that the drawings are merely illustrative of one example of the invention. l

Figure 1 is va longtudinal section 'of a safety gas cock embodying my invention.

Figures 2 and 3. are transverse Vertical sectionsrespectively o-n the lines 2-2 and 3-3 of Figure 1. i I

In carrying out my invention in .accordance with the illustrated example, a suitablev body 10 is provided having a' through-bjore i 11 for the flow of gas throughv the c'ock. The numeral 12 indicates the usual gas supof the cock having a bore 15 'adapted by the turning o'f'the plug 14 to be brought'into or out of registerwith the bore 11 for permitting the fiow of gas 'or cutting ofi theV same. The numeral 16 indicates theusual hose for connectlng up' the gas cock and the gas stove o-r the like, and the numeral 17 ini dicates the rubber sleeve establisliing a connect-ion between the hose 16 and the terminalV nipple 18 of the gas cock. I

In accordance with my invention I provide an auxiliary valve 19 which in practice t pipe suitably connected als at 13 to; body 10 of the' cock at one end. The numeral147indicates the usual plug 'or valve' consist' 'of a pin 22 'onsaid valve l-9yvsaid pin;-

being movablein a slot 23 in' body 10.

spiing- 24 liesV for its 'major r'portion in. a

i j .55' Iiprovide a plate spring 24haying an olf-- set end 25 lymg1 over the valvef19'; vSaid;

groove 26 iii the terminal nipple ;18 so that itmaybe depressed to lie flush with' onwith-j in theperipheral surface offsaid terminal 18. Thati'end ofthe spring 24 oppositethe offset end 25 extends vbeneath an overhangmg lip 27V formed on terminal 18 at an end of groove 26. The arrangement is such that the rubber sleeve 17 when forced on to the terminal 18 stresses the spring- '24 and-depresses the same within the periphery of said termlnal 18 so as to make a gas tight connection'with said terminal. The -depres- I sion of the spring24 by' the placing of sleeve 17 causes the offset end 25 Vto force the plug valve 19 against the'pressure of spring 20 to a position With the port 21 of said plug in register with the bore 11Vto permit the flow. of gas through. the cock-.rp should the sleeve 27 be lpulled from the ter- Obviously,

minal 18 the spring 24'will react so t-hat Vits voffset end 25 will relieve the pressure of said spring on thef plug Valve n19 thereby permitting the spring 20 to expand andV move the said valve 19 to a position cuttingjofi' the. fiow of gas by moving the port 21 out o f VAregister' with bore 11. Thus the usual plug Valve V14 of the gas cock may be leftin open position for the flow of gas and reliance then maybe had on the automatic' closing` of the cock at the valve 19 whenever the.

sleeve 17 is pulled from the terminal 18 of illustrated example constitutes a practical' embodiment of my inve-ntion, I do not limitA myself strictly to the eziaot details herein illustratedy since, manifestly, the same can be considerably varied Without departure from the' spirit of the invention.

VVhat I claim is: o l

1. A Safety gas cock including. a body having a 'bore for the flow of gas therethrough, a transversely disposed valve having a port adapted to be moved into or out' of register With said bore,` a plate spring, said body at one end having a groove accommodating a portion of said spring, the said spring being rounded in cross-section for the lporton lying in said groove, and

having an offset end bearing against said valve, said body at its grooved portionv being adapted to receive 'an'element adaptedA to form a connection between the gasccock and the gas hose leading to the point of disi charge. of the gas, said element fitting an end of said gas cockand adapted to engage said spring-to ,depress 'thef same Within the groove of the body and thereby cause the Voffset portion to eX-e'rt pressure against said valve, and a spring beneath said Valve and tendng to move the valve automatically to the closed position with its port out ofregister with the. bore of the bodywhenever said element. is detached from thegas cool: and

, gaging said valve and adapted'to lie Within the 'surface of 'said body at an end thereof Whereby to be depressed by the terminal sleeve -of a gas hose when said sleeve is engaged i'ith said end ofv the body;v together With a spring acting on said valve and normally tending to Vmove the valve to the closed position When the pressure on the first 9 mentioned spring-'is i'elieved.

CHARLES J; ERMNTRAUT. p 

